40 Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
- As the message of TRY AGAIN happens, please refer to the explanation below.
In case of TRY AGAIN
Management
Poor position adjustment
Measure it after adjusting the exact position
again.
As eyelid or eyelashes
hide the pupil
Let the examinee open the eye wide, or
measure it while pushing the upper eyelid of
examinee upward.
As the pupil is smaller
than Alignment Ring
This machine’s measurable min radius of pupil
is 2.0mm. Though it is possible to measure in
the bright place, make sure that the bright
illumination or sunlight shall not shed directly on
examinee’s eye.
As the examinee has the
disease such as cataract
The minor cataract can be measured in Retro-
Illum mode. As errors are worried to happen by
the scratch on cornea or turbidization of
crystalline lens, measure it in Retro-Illum mode.
Measure the corneal curvature of cataract
patient not in K&R mode, but in KER mode.
As the examinee has IOL
implanted
As measuring the refractive power of eye
implanted with IOL, measure it in IOL mode.
As Mire Image looks as if
it changed to tears
Measure after letting the examinee blink several
times.
As Mire Image is not
apparent because the
cornea is dry
As Mire Image has been
transformed irregularly
owing to strong negative
astigmatism or corneal
ailment.
Impossible to measure
As it exceeds the possible
range of measurement
Summary of Contents for HRK-7000
Page 1: ... Auto Ref Keratometer HRK 7000 7000A 1 User s Manual Auto Ref Keratometer HRK 7000 7000A ...
Page 43: ... Auto Ref Keratometer HRK 7000 7000A 43 Figure 22 Example of Print ...
Page 47: ... Auto Ref Keratometer HRK 7000 7000A 47 Figure 24 Example of Print ...
Page 53: ... Auto Ref Keratometer HRK 7000 7000A 53 Figure 26 Screen indicating KER P Mode ...
Page 74: ...74 Auto Ref Keratometer HRK 7000 7000A Figure 41 Display of VIRTUAL COMPARISON Mode ...